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Subject:	Re: Honeybee resistance to viruses
From:	Peter Borst <[log in to unmask]>
Reply To:	Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:	Fri, 11 Sep 2015 02:16:47 +0000
Content-Type:	text/plain
Parts/Attachments:	text/plain (1 lines)



> On Sep 10, 2015, at 9:34 PM, Christina Wahl <[log in to unmask]> wrote:

> 

>  Maybe the queen's gene expression pattern IS somehow affected just by the presence of Varroa in the hive???



This addresses the issue of pathogens in the queens:



> Honey bee queen samples were collected from the Hatay region of Turkey where infestation by V. destructor and colony losses have been a major problem for the apicultural industry and pollination.



> Honey bee queens in Hatay, Turkey, were investigated to reveal the status of Deformed Wing Virus (DWV) and parasites. DWV, Nosema sp., Malpighamoeba mellificae, and Varroa destructor were detected among samples. This is the first record of DWV in honey bee queens with multiple parasitic infections in apiaries with collapsed colonies in Turkey.



> We detected bands of 434 bp length corresponding to the DWV positive control in all of the RT-PCR products from the queen samples [this means all the queens had DWV]. Colonies were found to be infested with various densities of V. destructor, and 100% of the queens were positive for Nosema spp. and 14% for Malpighamoeba mellificae.



> The Hatay region has traditionally been used as a wintering area for honey bee colonies, having a suitable climate and flora, so each year, the density of colonies increases greatly. The uncontrolled movement of colonies originating from different geographic areas of Turkey may spread infections across other provinces.



Dilek Muz and Mustafa N. Muz. Survey of the occurrence of Deformed Wing Virus and multiple parasites of queens (Apis mellifera L.) in apiaries with collapsed colonies in Hatay, Turkey. Journal of Apicultural Research and Bee World 48(3): 204-208 (2009)



see also 



MUZ, M. N., ARSLAN, S., & GİRİŞGİN, A. O. Balarılarında Varroa destructor Enfestasyonuna Karşı Pudra Şekeri Etkinliğinin Araştırılması.





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